March 27th, 2014, 09:53 PM | #1 |
ninjette.org member
Name: Miles
Location: Northwest Indiana
Join Date: Mar 2012 Motorcycle(s): Black 2012 Ninja 250R Posts: 93
|
Oil pressure switch and banjo bolt issue
Ok, So I want to add an oil pressure sender but also keep the stock oil pressure sensor/warning light.
I'm sure some of you know, but in pic 1, you have the crank case, then the banjo bolt that screws into it, and then that banjo bolt has an opening at the top for the stock oil pressure switch. I am pretty sure it is 1/8" NPT Now I bought a 1/8" NPT T adapter, one end is male and the other 2 are female for the sensors. Both the aftermarket sender and stock oil switch screw into the female ends, which to me confirms that the stock sender is 1/8" NPT. However, the male end of the T adapter will NOT screw into the banjo bolt. If I try hard enough I can get a thread to catch but it only turns about 1/4 before stopping. Just doesn't make much sense to me because if the stock unit is going into the female end, why isn't the male end going into the banjo bolt? The T adapter is tapered, but not sure if that makes a difference. Also the banjo bolt looks a little recessed but I don't think that is an issue because it does grab a little. And again, since the stock sender screws in to the adapter fine, it just doesn't make sense why the adapter won't go into the banjo bolt. Also directly trying to screw the aftermarket sender into the banjo bolt causes the same thing as the T-adapter, only a 1/4 turn. It also has tapered threads. Any help appreciated! |
|
March 28th, 2014, 12:52 AM | #2 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
|
It sounds like the threads are NPT 28 or BSP 27. I will check in the morning.
__________________________________________________
Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja |
|
March 28th, 2014, 04:15 AM | #3 |
ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
|
The thread size of the oil pressure sender is 1/8 BST 27. NPT 28 will not serew into it. You can go the other way but you can not screw NPT into BST. You can however drill out the BST threads. Not much but just enough to cut the NPT threads. Also don't use plumbers tape to seal the threads. This will leave dangerous strings that could clog. Use a liquid thread sealant from a tube.
__________________________________________________
Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja |
1 out of 1 members found this post helpful. |
March 28th, 2014, 05:51 AM | #4 |
Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
|
|
|
March 28th, 2014, 04:46 PM | #5 | ||
ninjette.org member
Name: Miles
Location: Northwest Indiana
Join Date: Mar 2012 Motorcycle(s): Black 2012 Ninja 250R Posts: 93
|
Quote:
Quote:
Luckily I have a 27 to 28 BSP adapter laying around so I will try that when I get a chance. Btw, do you know what the maximum oil pressure is in the ninja 250 engine? I would like to know so I know what sender to get. I heard somewhere the pressure relief valve is 65 psi, so I am guessing it is around there. |
||
|
March 28th, 2014, 05:07 PM | #6 | |
Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
|
Quote:
Should be neat to see. Not many have a oil pressure gauge, mostly temp gauges and a couple of oil coolers. |
|
1 out of 1 members found this post helpful. |
March 28th, 2014, 09:46 PM | #7 |
Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
|
Instead of trying to fabricate a connection for the sender unit at the banjo bolt and oil pressure switch, why not just tap into the oil plug hole where the measurements are taken (lower right side of engine)?
You'll need an adapter (M18 × 1.5) and of course a gauge and fittings for it. This way there is no potential pressure loses (due to restriction) to the head. |
1 out of 1 members found this post helpful. |
March 28th, 2014, 11:29 PM | #8 | |
ninjette.org member
Name: Miles
Location: Northwest Indiana
Join Date: Mar 2012 Motorcycle(s): Black 2012 Ninja 250R Posts: 93
|
Quote:
|
|
|
March 28th, 2014, 11:52 PM | #9 | |
Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
|
Quote:
|
|
1 out of 1 members found this post helpful. |
March 29th, 2014, 07:36 PM | #10 |
ninjette.org member
Name: Miles
Location: Northwest Indiana
Join Date: Mar 2012 Motorcycle(s): Black 2012 Ninja 250R Posts: 93
|
Hmm, I checked today and there is a decent amount of room back there for the oil pressure sender, as long as I had a 90 degree adapter. Hopefully I can just use one adapter, though not sure how hard it would be to find an M18X1.5 to 1/8"X28 BSP 90 degree adapter. Looks like a good spot to tap off of, I might just do that. Thanks for the heads up!
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Pressure Switch - Braided lines | Enrgkid | 2008 - 2012 Ninja 250R Tech Talk | 5 | March 3rd, 2015 05:24 AM |
brake banjo bolt dimensions? | smokinsingle | 2008 - 2012 Ninja 250R Tech Talk | 3 | February 29th, 2012 09:50 PM |
Safety Wire oil line banjo bolt | jasle | Ninjettes At Speed | 8 | December 29th, 2011 04:28 PM |
Oil pressure switch | randomwalk101 | 2008 - 2012 Ninja 250R Tech Talk | 13 | February 23rd, 2011 06:58 PM |
rear brake banjo bolt | randomwalk101 | 2008 - 2012 Ninja 250R Tech Talk | 4 | July 5th, 2010 08:31 AM |
|
|